Valve.



R. A. BOWEN.

VALVE.

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Patented Aug. 20, 918.

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ROBERT A. BOVEN, OFSPOKANE, WASHINGTON.

VALVE.

Specication of LettersPatent.

Patented Aug. 20, 19158.

Application led May 2, 1917. Serial No. 166,019.

To @ZZ whom t may] concern:

Be it known that I, ROBERT A. BOWEN, a citizen of the United States, residing at Spokane, in the county of Spokane and State of Washington, have invented certain new and useful Improvements in Valves, of which the following is a specification.

This invention relates to improvements in valves of the class employed for controlling the flow of steam or other gases or liquids, under pressure, and has for one of its objects to improve the construction and increase the efficiency and utility of devices of this character. a

Another object of the invention is to provide a device of this character with the valve and passages so arranged that the flow therethrough is continuous and the liquid undivided and uninterrupted by the valves or other parts, thereby obviating any tendency to clog or be checked in its iow.

Another object of the invention is to provide a device of this character in which all of the interior parts are freely accessible for grinding the valve seats, or refrrinding the seats in event of impairment or cutting.

With these and other objects in view, the invention consists in certain novel features of construction, as hereinafter shown and described and then specifically pointed out in the claims; and in the drawings illustrative of the preferred embodiment of the invention- Figure 1 is a vertical sectional elevation of the improved device.;

F ig. 2 is a section of the casing on the line 2`Q of Figl; m

Fig. 3 is an elevation of the upper portion of the device from the side opposite to that shown in Fig. 1;

Fig. l is a plan view of the valve casing with the valve stem and the stops in section on the line 3-3 of F ig. 1;

Fig. 5 is a detached perspective view of the valve. Y y

Corresponding and like parts are referred to in the following description and indicated in all the views of the reference characters.

The improved device comprises a hollow casing represented as a whole at 10 and with means for connecting an intake at one end and a discharge at the other end, the intake end being internally threaded as represented at 11, and the discharge end being internally threaded as represented at 12. The interior of the casing 10 is divided by a partition or diaphragm, indicated as a whole at 13, and is provided with a vertical extension or bearing 14 to receive the valve stem 15, and with a segmental port 16 concentric to the stem 15. The face of the partition or diaphragm 13 adjacent to the bearing let comprises the valve. seat indicated at 17, the port 16 passing through the valve seat as shown. The seat 17 includes an annular portion 18 which merges into the seat, as shown in Fig. 1. The lower side of the casing 10 is formed drawings by the same with a relatively large opening 19 in which a threaded plug 20 engages to close the opening, the plug being provided with a wrench receiving projection. The opening 19 provides access to thefseat 17*18 to permit the latter to be ground and likewise to enable the bearing 14: to be bored and turned true. The plug 20 likewise coacts with the opening y19 to form a drip chamber.

The valve is represented as a whole at 21 and is in disk-like form and provided with a segmental port 22 coacting with the port 16 to permit the passage of the gas or liquid, the stem 15 being preferably integral with they valve 21.

The upper face of the valve is ground to engage the seat 17y gas or water tight, while the margin of the valve is likewise ground to engage the portion 18 of the seat of the casing, the two ground surfaces coacting to render the valve gas and liquid tight Y The segmental ports 15-22 are so arranged that when the valve 21 is disposed in one position the ports 16-22 are in alinement or register, and when the valve is reversed in position the port 22 will engage the solid unapertured portion of the seat l? and thus cut oft the tion'.

The port l@ is than one halt oit the area of the seat l?, so that ivhen reversed in position, or turned one hah' a. revolution, the port ivill be entirely cut oli' by the solid or unpertorated portion ot the seat l?, and correspondingly cut ott the ilovv or the gas or liquid. rEhe valve 2l inay likewise be so disposed as to partially cut oil' theiiovv by rotating` the stein l5 a portion only oi a revolutioin thus the ports lr6- 22 inay be open to any required extent to eitectually control the tlovv.

T he vertical extension or bearingl le orins a guideivay for the stern 157 and is cored to torni a recess 25 Within `which a coiled spring1 2G is disposed bearingat its lovver end upon the shoulder torined by the recess Q5.

lig'idly secured upon the upper end of the stein l5, preferably by a clanip nut 23? is a turning vvneel :29. rhe vvlieel 29 bears flatly upon the extension le, and the spring 26 engages the under-tace of the hub oit the Wheel.

By this arrangement it will be obvious that the valve 2l is held by lthe torce oi the spring 26 in engagement with its scat l?, While the stein 'l5 inay be rotated to control the tloiv through the valve hy manipulating the ivheel 29. ldeans is provided tor lockingw the valve 2l in adjusted position, and consis-ts or a plurality ci: radially disposed teeth 30 projecting from the extension lil ot the valve casing the teeth extending about halt ivay around the extension as shovvn in l Fivoted at 3l upon the hand ivheel cranlr lever comprising,` a lovver arin 32 having a recess indicated at 33 to engage over the tee' 50 one at a tune, vvliile the other afin 3% oA cie bell cranlr lever errtends over the outer tace ot the Wheel 29 and is held yieldably in its upper position by a spring The spring thus serving to inaintain the portion 33 of the lever arin yieldably in engagement. vfitli one oi the teeth 30. lt the valve 2l is to be held in its 'full open position the lever vvill be arranged to engage with the first tooth 30 at the right, and it the valve is to be locked in i-'ully closed position the lever arin Will be arranged vvith the portion in engagement with the last tooth at the lettv and by coupling' the portion ot the lever with any one ci the intermediate teetln the valve inay he held in any position partly open Within the range ot tne teeth. lependn ing i'froin the hand VWheel 29 at a point dia nietrically opposite the portion 32 ot the lever is a stop lug 36 which nioves over the untoothed portion of the nieinber lland is adapted to engage against the terminal teeth 30, and thus liinit the niovenient oi the nieinber l5 and prevent the valve troni being rotated except in one direction. By this arrangement it Will he impossible to niove the valve except in the proper direction.

By arranging the valve With the coacting ports in registering position the loiv ot the or liquid is not checlred by passaround short corners or short bends of l valve. rlhe flow is thus uniinpaired and l a. ilovving liquid is not separated or dividedr` thus inalring the dow continuous. By #lie iinproved valve it is never required to rotate the stern niore than halt' a revolution to dispose the valve either fully open or fully closedw fill parts of the interior ot the casing are readily accessible for grinding the seat or regrinding the seat vvhen Worn.

The i iproved device niay be constructed ot any required size and of any required material and is adaptable to high or lovf pressure` and niay be employed wherever a valve ot this character is required.

Having thus described the invention, what is claiinen as new is:

l. il valve including a casing1 having inlet and outlet ports and provided with an errtension, the vvall or" which is formed vvith teeth extending` partially around said e1- tension, a valve having' a stein seated in the extension, a turning ineniher secured to the stein a bell cranlr lever pivotally mounted on the turningg1 ineniber and havingits short arni provided with a recess adapted to receive any one of the teeth, a spring interposed betvveen the bell crank lever and the turning ineinber, and a lug depending troni the turning` nieinber and adapted to engage the end teeth for limiting the rotary inove- 'inent of the turningl nieinber.

il valve includinga casing having inlet and outlet ports and provided vvith an e2;- tension7 the upper end of which is iornied ivith an exterior segmental rack, a valve provided vvith a stein seated in the extension, the upper end oli' the extension being enlarged to forni an interior recess, a turning` device secured to the stein7 a coiled spring seated in the recess and bearing1 against the turning ineinber tor yieldably holding` the valve to its seat, spaced earssecured to the outer face of the turning ineinloer, a. bell cranl; lever pivotally mounted bet-Ween said ears and having its short arin depending belovv the turning` nieinber and provided with a recess adapted to receive any one ot the teeth of the raclr, a spring; interposed between the long` arni of the bell cranlr lever and the turning ineinber, and a lug depending; troni the turning ineniber and adapted to engage the end teeth oi the rack for liinitingl the rotary inovenient or" said turningl inenib er.

3. A easing provided with an extension, teeth, means for normally holding the rethe outer portion of which is formed With cessed end of the bell Crank lever in engage- 10 teeth extending partially around the eXtenment with the teeth, and a lug depending sion, a shaft seated in the extension, a turnfrom the turning member and adapted to en- 5 ing member secured to the shaft, a bell Crank gage the end teeth for limiting the rotary lever pivotally mounted on the turning memmovement of the turning member. ber and having its short arm provided with In testimony whereof I aix my signature. 15 a recess adapted to receive any one of the ROBERT A. BOWEN. [La] Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

